AVAILABLE AS AN ONLINE EXCLUSIVE AT NET-A-PORTER.COM London label Les Chiffoniers has mastered fall's must-have leather leggings trend, so take a super hip approach with this sage stretch pair. Cut for a close fit and finished with a comfortable elasticated waist, as well as detachable black tassels, they're a tribute to the brand's acute attention to detail. Strike the perfect proportion-play by balancing yours with loose-fit shirts and sweaters.